How will you prepare magnesium nitrate from nitric acid?

Write the balanced equation for the following conversions A, B,C and D.

Correct the following, if required:

${\mathrm{HNO}}_3$ is a strong reducing agent.

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${\mathrm{NaNO}}_3$ gives ${\mathrm{NO}}_2$ and ${\mathrm{O}}_2$ on heating.

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Constant boiling nitric acid contains $80\%$ nitric acid by weight.

Correct the following, if required:

Nitric acid remains colourless even when exposed to light.